{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "Administration of the local anaesthetic bupivacaine ( 1 . 5 or 2 mg / kg , i . v . ) to rats elicited a marked decrease of mean arterial blood pressure ( MBP ) and heart rate ( HR ) leading to death ( in 67 % or 90 % of animals respectively ) ."}
{"Chemical": ["bupivacaine"], "Disease": ["decrease of mean arterial blood pressure ( MBP ) and heart rate ( HR )"]}